US4547794A - Reusable fixture for holding a segment of a flexible strip - Google Patents
Reusable fixture for holding a segment of a flexible strip Download PDFInfo
- Publication number
- US4547794A US4547794A US06/661,965 US66196584A US4547794A US 4547794 A US4547794 A US 4547794A US 66196584 A US66196584 A US 66196584A US 4547794 A US4547794 A US 4547794A
- Authority
- US
- United States
- Prior art keywords
- segment
- cavity
- body member
- fixture according
- fixture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L21/6835—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using temporarily an auxiliary support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67144—Apparatus for mounting on conductive members, e.g. leadframes or conductors on insulating substrates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/5313—Means to assemble electrical device
- Y10T29/53265—Means to assemble electrical device with work-holder for assembly
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24174—Structurally defined web or sheet [e.g., overall dimension, etc.] including sheet or component perpendicular to plane of web or sheet
- Y10T428/24182—Inward from edge of web or sheet
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
- Y10T428/24298—Noncircular aperture [e.g., slit, diamond, rectangular, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
Definitions
- the present invention relates to processes and apparatus used in the fabrication of integrated circuit (IC) devices in general and to a reusable fixture for holding a segment of a thin flexible strip on which has been attached a flexible beam lead and to which lead an IC chip has been or is to be bonded in particular.
- IC integrated circuit
- an IC chip is attached to a lead frame.
- the lead frame is provided to facilitate the electrical connection of apparatus to the chip.
- the strip is cut into segments with each segment comprising at least one lead frame.
- U.S. Pat. No. 4,007,479 there is disclosed a reusable fixture for removably holding a segment of a thin flexible strip as described above.
- the fixture there is provided a plurality of four lugs or projections.
- Each of the lugs is provided to project through and frictionally engage the edges of an associated one of a plurality of sprocket holes which extend along the lateral edges of the segment.
- these sprocket holes are called handling or attachment sprocket holes.
- the lugs in each pair comprise facing protrusions which overlie adjacent edges of a pair of adjacent sprocket holes of a segment inserted in the fixture. Between the lugs of each pair there is provided in the fixture a detachment opening for providing access to that portion of the segment which lies between the adjacent sprocket holes.
- a rod is projected through the detachment opening and pressed against the segment with sufficient energy to force the segment over the facing protrusions on the lugs.
- One of the problems is associated with the use of facing protrusions over which a segment must be forcibly moved during insertion in and removal from the fixture. This is due to the fact that as a succession of segments are inserted in and removed from the fixture and the edges of the sprocket holes are "snapped" over the protrusions, the protrusions are eventually worn away and the fixture must be replaced.
- a further disadvantage of the prior known fixtures arises from the fact that different tooling is required to insert and remove a segment into and from the fixtures, respectively.
- one tool is required to insert the segment in the fixture and an entirely different tool is required to remove the segment from the fixture.
- a principal object of the present invention is a reusable fixture for removably holding a segment of a thin strip of material used in the fabrication of an IC device which does not require the forced snapping of the segment into and therefrom.
- Another object of the present invention is a fixture as described above which permits greater movement of the segment in the fixture for centering the segment in a machine in which the fixture is inserted without moving the fixture than has been possible in prior known related fixtures.
- Still another object of the present invention is a fixture which uses identical tooling for both inserting a segment in and removing a segment from a fixture.
- a fixture comprising a body member and a plurality of elongated laterally separated movable beams.
- Each of the beams is resiliently attached at one end to the body member in a cantilevered fashion.
- the free end of each of the beams is provided with an inwardly directed enlarged portion.
- a hole is provided in the frame beneath each beam.
- a rod or the like is projected through the hole in the frame beneath each beam and moved laterally outwardly.
- each rod engages the beam associated therewith moving the free end of the beam laterally outwardly.
- a segment of a thin strip of material used in the fabrication of an IC device is inserted into the fixture between the beams, and the rods are moved.
- the rods are removed, the beams snap inwardly to their initial position.
- the enlarged inwardly directed portions of the free end of each of the beams overlies a lateral edge of the segment allowing the segment to be moved longitudinally and laterally therebeneath. Movement of the beams to remove a segment from the fixture is accomplished in the same manner.
- FIG. 1 is a perspective view of an embodiment of the present invention
- FIG. 2 is a plan view of the embodiment of FIG. 1;
- FIG. 3 is a cross-sectional view taken in the direction of lines 3--3 of FIG. 2;
- FIG. 4 is a top plan view of another embodiment of the present invention.
- FIG. 5 is a top plan view of still another embodiment of the present invention.
- a fixture designated generally as 1 for removably retaining a segment of a flexible strip of material used in the fabrication of an integrated circuit (IC) device.
- a body member designated generally as 2 In the fixture 1 there is provided a body member designated generally as 2.
- a cavity 3 In the body member 2 there is provided a base 4.
- a square-shaped hole 5 On opposite sides of the hole 5 located on a transverse axis 6 of the body member 2 there is provided a pair of segment aligning holes 7 and 8. Extending perpendicularly from the base 4 there is provided a plurality of segment receiving pins 12, 13, 14 and 15.
- Pins 12 and 13 are equidistantly spaced from the hole 7 along a line parallel to an edge of the cavity 3.
- the pins 14 and 15 are equidistantly spaced from the hole 8 along a line parallel to the opposite edge of the cavity 3.
- the location of the holes 7, 8 and the pins 12-15 correspond to the location of sprocket holes along the lateral edges of a segment 17 of a flexible strip of beam lead inserted in the fixture 1 as shown by dashed lines in FIGS. 2 and 3.
- each of the beam members 20-23 comprise a free end designated generally as 25.
- the free end 25 comprises a tab portion 26.
- the tab portion 26 is provided with a surface 27 which faces the base 4 of the cavity 3.
- the surface 27 is beveled from the interior end of the tab 26 toward a corresponding edge of the cavity 3 as shown most clearly in FIG. 3.
- each of the beam members 20-23 there is provided on either side of each of the beam members 20-23 a pair of spaces 30 and 31. As shown with respect to the beam 20, the spaces 30 and 31 are provided for allowing each of the beam members to be moved from a first position shown in solid lines, to a second position shown in dash lines. In practice, the movement of each of the beams 20-23 is accomplished by a tool represented by a circle designated 33 shown adjacent to the beam 20 in FIG. 2.
- a body member designated generally as 40 In the body member 40 there is provided a cavity designated generally as 41 having a base 42. In the base 42 there is provided a square-shaped aperture 43, a plurality of holes 44 and 45, a plurality of pin members 46, 47, 48 and 49 and a plurality of elongated cantilevered movable beam members 53, 54, 55 and 56.
- the size and location of the above-identified features of the body member 40 are substantially identical to the corresponding features identified and described above with respect to the embodiment of FIGS. 1-3 except for the fact that the beam members 53-56, instead of extending from the body member 40 in a direction parallel to an edge of the cavity 41 toward a transverse axis 6 as described above with respect to the embodiment of FIGS. 1-3, extend outwardly from the transverse axis 6 toward opposite ends of the cavity 41.
- a fixture designated generally as 60 In the fixture 60 there is provided a body member designated generally as 61. In the body member 61 there is provided a cavity 62. In the cavity 62 there is provided a generally square-shaped hole 63, a plurality of segment aligning holes 64 and 65 and a plurality of pin members 66, 67, 68 and 69. Extending from the body member 61 is a cantilevered fashion in a direction parallel to opposite edges of the cavity 62, there is provided a plurality of movable beam members 70 and 71. The beam members 70 and 71 extend from the body member 2 toward a transverse axis 6 of the body member 61.
- the free ends 72 and 73 are centrally located on the transverse axis 6.
- the cavity 62, the holes 63-65 and the pins 66-69 have substantially the same size and location as the corresponding features described above with respect to the embodiments of FIGS. 1-4.
- the fixture of any of the embodiments is inserted in a machine used in the fabrication of an IC device. Since each of the embodiments is used in essentially the same way, only the use of the embodiment of FIGS. 1-3 will be described.
- a pin in the machine corresponding to the pin 33 of FIG. 2, is moved either upwardly or downwardly to engage an inner surface of each of the elongated beam members as shown in the upper lefthand corner of FIG. 2 and is thereafter moved outwardly to move the corresponding beam member from a first position shown in solid lines to a second position shown in dash lines.
- a segment 17 of a flexible strip having sprocket holes along opposite edges thereof is inserted in the cavity of the fixture, e.g., cavity 3 of FIGS. 1-3.
- the pin member 33 holding each of the beam members in their second position is withdrawn, allowing the beam members to return to their first position.
- the tab 26 crosses over the corresponding edge of the cavity 3, capturing the segment 17 between the tab 26 and the base 4.
- the size of the sprocket holes in which the pins 12-15 are inserted is somewhat larger than the transverse cross-section of the pins 12-15 such that the segment is free to be moved relative to the pins 12-15 in a plane parallel to the base 4.
- Such movement is provided by a centering tool which is inserted through the holes 7 and 8 and the corresponding sprocket holes in the segment 17 inserted in the cavity 3.
- the tool With the holes 7 and 8 having a diameter which is larger than the size of the sprocket holes in the segment, the tool can be moved laterally as well as longitudinally for moving the segment without moving the fixture. In this manner, a segment may be centered in a machine without a corresponding movement of the fixture.
- the pin 33 can once again be used to move the beam members from their first position to their second position to release the segment from the fixture.
Abstract
Description
Claims (18)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/661,965 US4547794A (en) | 1984-10-17 | 1984-10-17 | Reusable fixture for holding a segment of a flexible strip |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/661,965 US4547794A (en) | 1984-10-17 | 1984-10-17 | Reusable fixture for holding a segment of a flexible strip |
Publications (1)
Publication Number | Publication Date |
---|---|
US4547794A true US4547794A (en) | 1985-10-15 |
Family
ID=24655828
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US06/661,965 Expired - Lifetime US4547794A (en) | 1984-10-17 | 1984-10-17 | Reusable fixture for holding a segment of a flexible strip |
Country Status (1)
Country | Link |
---|---|
US (1) | US4547794A (en) |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4744009A (en) * | 1986-10-31 | 1988-05-10 | Amp Incorporated | Protective carrier and securing means therefor |
EP0311513A2 (en) * | 1987-10-05 | 1989-04-12 | Fujitsu Limited | Film segment having integrated circuit chip bonded thereto and fixture therefor |
US4832612A (en) * | 1986-10-31 | 1989-05-23 | Amp Incorporated | Protective carrier and securing means therefor |
WO1990001793A1 (en) * | 1988-08-03 | 1990-02-22 | Byers Photo Equipment Co. | Method and apparatus for framing a film mounted integrated circuit |
EP0390542A2 (en) * | 1989-03-30 | 1990-10-03 | Yamaichi Electronics Co., Ltd. | IC carrier |
US5028985A (en) * | 1989-04-28 | 1991-07-02 | Yamaichi Electric Mfg. Co., Ltd. | IC carrier |
US5045923A (en) * | 1989-03-30 | 1991-09-03 | Yamaichi Electric Mfg. Co., Ltd. | Contact structure in socket with IC carrier placed thereon |
US5251372A (en) * | 1988-08-03 | 1993-10-12 | Houghton Jon C | Method and apparatus for framing a film mounted integrated circuit |
US5349236A (en) * | 1992-07-21 | 1994-09-20 | Mitsui Toatsu Chemicals, Incorporated | Reusable fixture for carrier tape |
US5421079A (en) * | 1992-02-14 | 1995-06-06 | International Business Machines Corporation | High density, high performance memory circuit package |
EP0708584A1 (en) * | 1994-10-18 | 1996-04-24 | Thomas & Betts Corporation | Socket for electrical device |
US5577617A (en) * | 1995-12-29 | 1996-11-26 | Xerox Corporation | Advanced technique for packaging multiple number of electrically stackable high voltage transistors in one package |
US5738528A (en) * | 1995-04-17 | 1998-04-14 | Yamaichi Electronics Co., Ltd. | IC carrier |
US5758776A (en) * | 1996-09-12 | 1998-06-02 | Kinetrix, Inc. | Integrated circuit tray with flexural bearings |
US5885101A (en) * | 1995-08-11 | 1999-03-23 | Yamaichi Electronics Co., Ltd. | IC carrier |
US5971156A (en) * | 1997-09-05 | 1999-10-26 | Kinetrix, Inc. | Semiconductor chip tray with rolling contact retention mechanism |
US6003675A (en) * | 1995-09-22 | 1999-12-21 | Matsushita Electric Industrial Co., Ltd. | Part retainer for holding a part |
US20050259406A1 (en) * | 2004-05-21 | 2005-11-24 | Cardiac Pacemakers, Inc. | Method and apparatus for carrying circuit assemblies |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US30604A (en) * | 1860-11-06 | Dyer greene | ||
US4007479A (en) * | 1976-03-29 | 1977-02-08 | Honeywell Information Systems, Inc. | Fixture for an integrated circuit chip |
US4069496A (en) * | 1976-12-30 | 1978-01-17 | Honeywell Information Systems Inc. | Reusable fixture for an integrated circuit chip |
-
1984
- 1984-10-17 US US06/661,965 patent/US4547794A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US30604A (en) * | 1860-11-06 | Dyer greene | ||
US4007479A (en) * | 1976-03-29 | 1977-02-08 | Honeywell Information Systems, Inc. | Fixture for an integrated circuit chip |
US4069496A (en) * | 1976-12-30 | 1978-01-17 | Honeywell Information Systems Inc. | Reusable fixture for an integrated circuit chip |
Cited By (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4832612A (en) * | 1986-10-31 | 1989-05-23 | Amp Incorporated | Protective carrier and securing means therefor |
US4744009A (en) * | 1986-10-31 | 1988-05-10 | Amp Incorporated | Protective carrier and securing means therefor |
EP0311513A2 (en) * | 1987-10-05 | 1989-04-12 | Fujitsu Limited | Film segment having integrated circuit chip bonded thereto and fixture therefor |
US4937655A (en) * | 1987-10-05 | 1990-06-26 | Fujitsu Limited | Film segment having integrated circuit chip bonded thereto and fixture therefor |
EP0311513A3 (en) * | 1987-10-05 | 1990-10-24 | Fujitsu Limited | Film segment having integrated circuit chip bonded thereto and fixture therefor |
US5251372A (en) * | 1988-08-03 | 1993-10-12 | Houghton Jon C | Method and apparatus for framing a film mounted integrated circuit |
WO1990001793A1 (en) * | 1988-08-03 | 1990-02-22 | Byers Photo Equipment Co. | Method and apparatus for framing a film mounted integrated circuit |
US4949159A (en) * | 1988-08-03 | 1990-08-14 | Byers Photo Equipment Company | Carrier for film-mounted integrated circuit |
US5592734A (en) * | 1988-08-03 | 1997-01-14 | Byers Industries, Inc. | Method and apparatus for framing a film mounted integrated circuit |
EP0390542A2 (en) * | 1989-03-30 | 1990-10-03 | Yamaichi Electronics Co., Ltd. | IC carrier |
US5045923A (en) * | 1989-03-30 | 1991-09-03 | Yamaichi Electric Mfg. Co., Ltd. | Contact structure in socket with IC carrier placed thereon |
EP0390542A3 (en) * | 1989-03-30 | 1992-12-09 | Yamaichi Electronics Co., Ltd. | Ic carrier |
US5021868A (en) * | 1989-03-30 | 1991-06-04 | Yamaichi Electric Mfg. Co., Ltd. | IC carrier |
US5028985A (en) * | 1989-04-28 | 1991-07-02 | Yamaichi Electric Mfg. Co., Ltd. | IC carrier |
US5421079A (en) * | 1992-02-14 | 1995-06-06 | International Business Machines Corporation | High density, high performance memory circuit package |
US5349236A (en) * | 1992-07-21 | 1994-09-20 | Mitsui Toatsu Chemicals, Incorporated | Reusable fixture for carrier tape |
EP0708584A1 (en) * | 1994-10-18 | 1996-04-24 | Thomas & Betts Corporation | Socket for electrical device |
US5738528A (en) * | 1995-04-17 | 1998-04-14 | Yamaichi Electronics Co., Ltd. | IC carrier |
US5885101A (en) * | 1995-08-11 | 1999-03-23 | Yamaichi Electronics Co., Ltd. | IC carrier |
US6332539B2 (en) | 1995-09-22 | 2001-12-25 | Matsushita Electric Industrial Co., Ltd. | Part retainer for holding a part |
US6003675A (en) * | 1995-09-22 | 1999-12-21 | Matsushita Electric Industrial Co., Ltd. | Part retainer for holding a part |
US5577617A (en) * | 1995-12-29 | 1996-11-26 | Xerox Corporation | Advanced technique for packaging multiple number of electrically stackable high voltage transistors in one package |
US5758776A (en) * | 1996-09-12 | 1998-06-02 | Kinetrix, Inc. | Integrated circuit tray with flexural bearings |
US5971156A (en) * | 1997-09-05 | 1999-10-26 | Kinetrix, Inc. | Semiconductor chip tray with rolling contact retention mechanism |
US20050259406A1 (en) * | 2004-05-21 | 2005-11-24 | Cardiac Pacemakers, Inc. | Method and apparatus for carrying circuit assemblies |
US7352592B2 (en) | 2004-05-21 | 2008-04-01 | Cardiac Pacemakers, Inc. | Method and apparatus for carrying circuit assemblies |
US20080165512A1 (en) * | 2004-05-21 | 2008-07-10 | Cardiac Pacemakers, Inc. | Method and apparatus for carrying circuit assemblies |
US7730609B2 (en) | 2004-05-21 | 2010-06-08 | Cardiac Pacemakers, Inc. | Method and apparatus for carrying circuit assemblies |
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